CN-121046241-B - Bacillus salicinus HMF09 and application thereof

Abstract

The invention relates to bacillus salicillus (Halobacillus sp.) HMF09 with a preservation number of CGMCC No.30475. The strain can antagonize tomato specialization of Fusarium oxysporum, has high salt and alkali tolerance and high-efficiency cadmium ion fixing capacity, and can reduce the ion activity of heavy metal cadmium in soil, reduce the stress of salt and alkali on crops and promote the growth of crops.

Inventors

• SONG GEN
• FENG JIANLONG
• GAO YAN
• HAN LILI
• GUO DINGXIN
• ZHANG BAOHAI
• SONG CHUNGUANG
• ZHAO YANMIN
• FAN YAFEI
• Ji Guojia
• JIA ZHENHUA
• HUANG YALI
• Cui Jirong
• ZHANG ZHIWEI
• WANG CHANGSONG
• WU YANHONG

Assignees

• 秦皇岛禾苗生物技术有限公司

Dates

Publication Date

20260512

Application Date

20250801

Priority Date

20240904

Claims (5)

1. 1. The bacillus salicillus (Halobacillus sp.) HMF09 is characterized by having a preservation number of CGMCC No.30475.
2. 2. Use of bacillus salicillus HMF09 as claimed in claim 1 for remediation of cadmium contaminated soil.
3. 3. Use of bacillus salicillus HMF09 as claimed in claim 1 for remediation of cadmium contaminated saline-alkali soil.
4. 4. Use of bacillus salicillus HMF09 as claimed in claim 1 for promoting corn growth in a cadmium contaminated soil environment.
5. 5. Use of bacillus salicillus HMF09 as claimed in claim 1 for controlling tomato blight.

Description

Bacillus salicinus HMF09 and application thereof Technical Field The invention belongs to the technical field of microorganisms, and particularly relates to a bacillus salicillus strain HMF09 and application thereof. Background The heavy metal contaminated soil refers to a phenomenon that heavy metal is introduced into the soil due to human activities, so that the heavy metal content in the soil is obviously higher than the original content, and the ecological environment is deteriorated. Heavy metal cadmium (Cd) has strong chemical activity, high mobility, persistent toxicity and easy enrichment in food chains, can influence the normal physiological activities of crop enzyme activity systems, cell and organelle structures, metabolism and the like, and has potential threat to human health. Saline-alkali soil is a generic term for saline-alkali soil and alkaline earth. The saline soil mainly refers to saline soil with higher chloride or sulfate, and the soil is alkaline, but the pH value is not necessarily very high. Alkaline earth refers to soil containing carbonate or heavy phosphate, the pH value is higher, the soil is alkaline, the organic matter content of the saline-alkali soil is low, the soil fertility is low, the physical and chemical properties are poor, the number of anions and cations harmful to crops is large, and the crops are not easy to promote seedlings. The soil in partial areas of China has the problems of serious metal pollution and saline alkali, which has double influence on plants and greatly influences the growth and development of the plants. Solves the problems of heavy metal pollution and salinization of soil, and is urgent. Research shows that partial functional microorganisms can form precipitation with heavy metals through substances such as carbonate, hydrogen sulfide and phosphate, so that the mobility and bioavailability of the heavy metals in soil are reduced, and the method is widely applied to the remediation of heavy metal contaminated soil. Aiming at cadmium pollution in soil heavy metal pollution, microbial adsorption and degradation are a low-cost, environment-friendly and efficient method for treating the cadmium-polluted soil. However, the strain with high saline-alkali tolerance and high cadmium fixing capacity has fewer resources at present. Therefore, the strain and microbial inoculum products which can promote plant growth and reduce the activity of heavy metal ions in soil, namely the content of effective cadmium in soil and stress of saline-alkali on crops are screened, and the method has important significance for sustainable agricultural development and efficient resource utilization of saline-alkali soil. The tomato fusarium wilt is a soil-borne disease caused by fungi, is mainly transmitted through soil and mainly damages the rhizome part and the vascular bundle system of the tomatoes, and has important significance in production by developing and applying a microbial inoculum for preventing and controlling the tomato fusarium wilt. Disclosure of Invention The invention aims to provide bacillus salicifolius HMF09 which has high salt and alkali resistance, high cadmium ion fixing capacity and can antagonize Fusarium oxysporum tomato specialization, and the strain can reduce the ion activity of heavy metal cadmium in soil, reduce the stress of salt and alkali on crops, prevent and treat tomato fusarium wilt and promote the growth of crops. The invention adopts the following technical scheme: the bacillus salicillus (Halobacillus sp.) HMF09 is preserved in China general microbiological culture collection center (CGMCC) with the preservation number of CGMCC No.30475 at 2024 and 30 days. Further, the bacillus salicifolius HMF09 is resistant to saline and alkaline. Further, the bacillus caldus HMF09 can tolerate heavy metal cadmium. Further, the bacillus caldus HMF09 is used for fixing or adsorbing heavy metal cadmium. Further, the bacillus caldus HMF09 antagonizes fusarium oxysporum tomato specialization. Further, the bacillus halophilus HMF09 can promote plant growth. An application of the bacillus caldus HMF09 in the treatment of cadmium-polluted soil. Application of the bacillus caldus HMF09 in treating saline-alkali soil. Application of the bacillus caldus HMF09 in treating saline-alkali soil polluted by cadmium. The application of the bacillus halophilus HMF09 in promoting crop growth in a cadmium-polluted soil environment. An application of the bacillus caldus HMF09 in preventing and treating tomato wilt. A microbial agent comprising the bacillus halophilus HMF 09. The bacillus salicifolius HMF09 strain has the advantages of good salt and alkalinity resistance and capability of reducing the content of heavy metal cadmium, and can normally grow in a high-salt-alkali culture medium and a cadmium-containing environment. Meanwhile, the bacillus salicillus HMF09 strain can effectively relieve the condition that the plant nutrition growth process is inhibited un